Theropod dinosaurs from the Albian–Cenomanian Wayan Formation of eastern Idaho
| Autor: | David J. Varricchio, D. Jade Simon, Garrett Scofield, L.J. Krumenacker |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
010506 paleontology animal structures biology biology.organism_classification 010603 evolutionary biology 01 natural sciences Cretaceous body regions Paleontology Oryctodromeus Wayan Formation Assemblage (archaeology) Cenomanian General Agricultural and Biological Sciences Macroelongatoolithus Geology 0105 earth and related environmental sciences |
| Zdroj: | Historical Biology. 29:170-186 |
| ISSN: | 1029-2381 0891-2963 |
| Popis: | The record of terrestrial vertebrates in the upper Albian to Cenomanian Wayan Formation of Idaho is sparse, with most fossils recovered belonging to the small orodromine neornithischian Oryctodromeus cubicularis and the maniraptoran ootaxon Macroelongatoolithus carlylei. Here we report on a diversity of theropod forms now recognised from various isolated teeth, vertebrae, eggs and eggshell. Theropods recognised from isolated teeth include a large possible tyrannosauroid, a small tyrannosauroid, dromaeosaurids, and indeterminate theropods. A possible neovenatorid and indeterminate theropods are recognised from isolated vertebrae. A giant oviraptorosaur is indicated by the presence of rare eggs and common eggshell accumulations referred to Macroelongatoolithus. While these remains are admittedly meager, their presence indicates that a substantial diversity of theropods existed in the Albian to Cenomanian environments of southeastern Idaho. The Wayan theropod assemblage is among the most diverse repo... |
| Databáze: | OpenAIRE |
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